package com.itheima.reggie.config;

import com.itheima.reggie.common.JacksonObjectMapper;
import com.itheima.reggie.interceptor.LoginCheckInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import sun.util.resources.cldr.st.CurrencyNames_st_LS;

import java.util.ArrayList;
import java.util.List;

/**
 * 静态资源映射
 *
 * @Name ReggieWebMvcConfig
 * @Author stella
 * @Date 2023-03-01 10:58 AM
 */
//web相关配置
@Configuration
public class ReggieWebMvcConfig implements WebMvcConfigurer {
    /**
     * 设置静态资源映射
     * @param registry
     */
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        //当访问请求是/backend/**时,去classpath:/backend/寻找对应资源
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");

        //文档需要映射的静态资源
        registry.addResourceHandler("doc.html").addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
    }

    /**
     * 添加拦截器的配置
     * @param registry
     */
    @Autowired
    private LoginCheckInterceptor loginCheckInterceptor;

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        ArrayList<String> urls = new ArrayList<>();
        urls.add("/backend/**");//管理系统静态资源
        urls.add("/error");//错误请求
        urls.add("/employee/login");//管理系统登录请求

        //文档需要释放的静态资源
        urls.add("/doc.html");
        urls.add("/webjars/**");
        urls.add("/swagger-resources");
        urls.add("/v2/api-docs");

        //配置拦截器和路径
        registry.addInterceptor(loginCheckInterceptor).addPathPatterns("/**").excludePathPatterns(urls);
        //     "/**"拦截所有    exclude放行指定路径urls集合
    }

    //扩展mvc框架的消息转换器
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackson将Java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0, messageConverter);
    }
}
